Notable changes:

* async_hooks:
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    #18513
  - rename PromiseWrap.parentId to PromiseWrap.isChainedPromise
    (Ali Ijaz Sheikh) #18633
* deps:
  - update node-inspect to 1.11.3 (Jan Krems)
    #18354
  - ICU 60.2 bump (Steven R. Loomis)
    #17687
  - Introduce ScriptOrModule and HostDefinedOptions to V8 (Jan Krems)
    #16889
* http:
  - add options to http.createServer() for `IncomingMessage` and
    `ServerReponse` (Peter Marton)
    #15752
* http2:
  - add http fallback options to .createServer (Peter Marton)
    #15752
* https:
  - Adds the remaining options from tls.createSecureContext() to the
    string generated by Agent#getName(). This allows https.request()
    to accept the options and generate unique sockets appropriately.
    (Jeff Principe)
    #16402
* inspector:
  - --inspect-brk for es modules (Guy Bedford)
    #18194
* lib:
  - allow process kill by signal number (Sam Roberts)
    #16944
* module:
  - enable dynamic import (Myles Borins)
    #18387
  - dynamic import is now supported (Jan Krems)
    #15713
* napi:
  - add methods to open/close callback scope (Michael Dawson)
    #18089
* src:
  - allow --perf-(basic-)?prof in NODE_OPTIONS (Leko)
    #17600
* vm:
  - add support for es modules (Gus Caplan)
    #17560

PR-URL: #18902

Notable changes:

* async_hooks:
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    #18513
  - rename PromiseWrap.parentId to PromiseWrap.isChainedPromise
    (Ali Ijaz Sheikh) #18633
* deps:
  - update node-inspect to 1.11.3 (Jan Krems)
    #18354
  - ICU 60.2 bump (Steven R. Loomis)
    #17687
  - Introduce ScriptOrModule and HostDefinedOptions to V8 (Jan Krems)
    #16889
* http:
  - add options to http.createServer() for `IncomingMessage` and
    `ServerReponse` (Peter Marton)
    #15752
* http2:
  - add http fallback options to .createServer (Peter Marton)
    #15752
* https:
  - Adds the remaining options from tls.createSecureContext() to the
    string generated by Agent#getName(). This allows https.request()
    to accept the options and generate unique sockets appropriately.
    (Jeff Principe)
    #16402
* inspector:
  - --inspect-brk for es modules (Guy Bedford)
    #18194
* lib:
  - allow process kill by signal number (Sam Roberts)
    #16944
* module:
  - enable dynamic import (Myles Borins)
    #18387
  - dynamic import is now supported (Jan Krems)
    #15713
* napi:
  - add methods to open/close callback scope (Michael Dawson)
    #18089
* src:
  - allow --perf-(basic-)?prof in NODE_OPTIONS (Leko)
    #17600
* vm:
  - add support for es modules (Gus Caplan)
    #17560

PR-URL: #18902

The emit{Before,After} APIs in AsyncResource are problematic.

* emit{Before,After} are named to suggest that the only thing they do
  is emit the before and after hooks. However, they in fact, mutate
  the current execution context.
* They must be properly nested. Failure to do so by user code leads
  to catastrophic (unrecoverable) exceptions. It is very easy for the
  users to forget that they must be using a try/finally block around
  the code that must be surrounded by these operations. Even the
  example provided in the official docs makes this mistake. Failing
  to use a finally can lead to a catastrophic crash if the callback
  ends up throwing.

This change provides a safer `runInAsyncScope` API as an alternative
and deprecates emit{Before,After}.

PR-URL: nodejs#18513
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>

Refs: nodejs#18513

PR-URL: nodejs#18694
Refs: nodejs#18513
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Notable changes:

* async_hooks:
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    nodejs#18513
  - rename PromiseWrap.parentId to PromiseWrap.isChainedPromise
    (Ali Ijaz Sheikh) nodejs#18633
* deps:
  - update node-inspect to 1.11.3 (Jan Krems)
    nodejs#18354
  - ICU 60.2 bump (Steven R. Loomis)
    nodejs#17687
  - Introduce ScriptOrModule and HostDefinedOptions to V8 (Jan Krems)
    nodejs#16889
* http:
  - add options to http.createServer() for `IncomingMessage` and
    `ServerReponse` (Peter Marton)
    nodejs#15752
* http2:
  - add http fallback options to .createServer (Peter Marton)
    nodejs#15752
* https:
  - Adds the remaining options from tls.createSecureContext() to the
    string generated by Agent#getName(). This allows https.request()
    to accept the options and generate unique sockets appropriately.
    (Jeff Principe)
    nodejs#16402
* inspector:
  - --inspect-brk for es modules (Guy Bedford)
    nodejs#18194
* lib:
  - allow process kill by signal number (Sam Roberts)
    nodejs#16944
* module:
  - enable dynamic import (Myles Borins)
    nodejs#18387
  - dynamic import is now supported (Jan Krems)
    nodejs#15713
* napi:
  - add methods to open/close callback scope (Michael Dawson)
    nodejs#18089
* src:
  - allow --perf-(basic-)?prof in NODE_OPTIONS (Leko)
    nodejs#17600
* vm:
  - add support for es modules (Gus Caplan)
    nodejs#17560

PR-URL: nodejs#18902

The emit{Before,After} APIs in AsyncResource are problematic.

* emit{Before,After} are named to suggest that the only thing they do
  is emit the before and after hooks. However, they in fact, mutate
  the current execution context.
* They must be properly nested. Failure to do so by user code leads
  to catastrophic (unrecoverable) exceptions. It is very easy for the
  users to forget that they must be using a try/finally block around
  the code that must be surrounded by these operations. Even the
  example provided in the official docs makes this mistake. Failing
  to use a finally can lead to a catastrophic crash if the callback
  ends up throwing.

This change provides a safer `runInAsyncScope` API as an alternative
and deprecates emit{Before,After}.

Backport-PR-URL: nodejs#19517
PR-URL: nodejs#18513
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>

Refs: nodejs#18513

Backport-PR-URL: nodejs#19517
PR-URL: nodejs#18694
Refs: nodejs#18513
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

The emit{Before,After} APIs in AsyncResource are problematic.

* emit{Before,After} are named to suggest that the only thing they do
  is emit the before and after hooks. However, they in fact, mutate
  the current execution context.
* They must be properly nested. Failure to do so by user code leads
  to catastrophic (unrecoverable) exceptions. It is very easy for the
  users to forget that they must be using a try/finally block around
  the code that must be surrounded by these operations. Even the
  example provided in the official docs makes this mistake. Failing
  to use a finally can lead to a catastrophic crash if the callback
  ends up throwing.

This change provides a safer `runInAsyncScope` API as an alternative
and deprecates emit{Before,After}.

Backport-PR-URL: #19517
PR-URL: #18513
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>

Refs: #18513

Backport-PR-URL: #19517
PR-URL: #18694
Refs: #18513
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Notable Changes:

* async_hooks:
  - rename PromiseWrap.parentId (Ali Ijaz Sheikh)
    #18633
  - remove runtime deprecation (Ali Ijaz Sheikh)
    #19517
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    #18513
* cluster:
  - add cwd to cluster.settings (cjihrig)
    #18399
  - support windowsHide option for workers (Todd Wong)
    #17412
* crypto:
  - allow passing null as IV unless required (Tobias Nießen)
    #18644
* deps:
  - upgrade npm to 6.2.0 (Kat Marchán)
    #21592
  - upgrade libuv to 1.19.2 (cjihrig)
    #18918
  - Upgrade node-inspect to 1.11.5 (Jan Krems)
    #21055
* fs,net:
  - support as and as+ flags in stringToFlags() (Sarat Addepalli)
    #18801
  - emit 'ready' for fs streams and sockets (Sameer Srivastava)
    #19408
* http, http2:
  - add options to http.createServer() (Peter Marton)
    #15752
  - add 103 Early Hints status code (Yosuke Furukawa)
    #16644
  - add http fallback options to .createServer (Peter Marton)
    #15752
* n-api:
  - take n-api out of experimental (Michael Dawson)
    #19262
* perf_hooks:
  - add warning when too many entries in the timeline (James M Snell)
    #18087
* src:
  - add public API for managing NodePlatform (Cheng Zhao)
    #16981
  - allow --perf-(basic-)?prof in NODE\_OPTIONS (Leko)
    #17600
  - node internals' postmortem metadata (Matheus Marchini)
    #14901
* tls:
  - expose Finished messages in TLSSocket (Anton Salikhmetov)
    #19102
* **trace_events**:
  - add file pattern cli option (Andreas Madsen)
    #18480
* util:
  - implement util.getSystemErrorName() (Joyee Cheung)
    #18186

PR-URL: #21593

Notable Changes:

* async_hooks:
  - rename PromiseWrap.parentId (Ali Ijaz Sheikh)
    nodejs#18633
  - remove runtime deprecation (Ali Ijaz Sheikh)
    nodejs#19517
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    nodejs#18513
* cluster:
  - add cwd to cluster.settings (cjihrig)
    nodejs#18399
  - support windowsHide option for workers (Todd Wong)
    nodejs#17412
* crypto:
  - allow passing null as IV unless required (Tobias Nießen)
    nodejs#18644
* deps:
  - upgrade npm to 6.2.0 (Kat Marchán)
    nodejs#21592
  - upgrade libuv to 1.19.2 (cjihrig)
    nodejs#18918
  - Upgrade node-inspect to 1.11.5 (Jan Krems)
    nodejs#21055
* fs,net:
  - support as and as+ flags in stringToFlags() (Sarat Addepalli)
    nodejs#18801
  - emit 'ready' for fs streams and sockets (Sameer Srivastava)
    nodejs#19408
* http, http2:
  - add options to http.createServer() (Peter Marton)
    nodejs#15752
  - add 103 Early Hints status code (Yosuke Furukawa)
    nodejs#16644
  - add http fallback options to .createServer (Peter Marton)
    nodejs#15752
* n-api:
  - take n-api out of experimental (Michael Dawson)
    nodejs#19262
* perf_hooks:
  - add warning when too many entries in the timeline (James M Snell)
    nodejs#18087
* src:
  - add public API for managing NodePlatform (Cheng Zhao)
    nodejs#16981
  - allow --perf-(basic-)?prof in NODE\_OPTIONS (Leko)
    nodejs#17600
  - node internals' postmortem metadata (Matheus Marchini)
    nodejs#14901
* tls:
  - expose Finished messages in TLSSocket (Anton Salikhmetov)
    nodejs#19102
* **trace_events**:
  - add file pattern cli option (Andreas Madsen)
    nodejs#18480
* util:
  - implement util.getSystemErrorName() (Joyee Cheung)
    nodejs#18186

PR-URL: nodejs#21593

Notable Changes:

* async_hooks:
  - rename PromiseWrap.parentId (Ali Ijaz Sheikh)
    #18633
  - remove runtime deprecation (Ali Ijaz Sheikh)
    #19517
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    #18513
* cluster:
  - add cwd to cluster.settings (cjihrig)
    #18399
  - support windowsHide option for workers (Todd Wong)
    #17412
* crypto:
  - allow passing null as IV unless required (Tobias Nießen)
    #18644
* deps:
  - upgrade npm to 6.4.1 (Kat Marchán)
    #22591
  - upgrade libuv to 1.19.2 (cjihrig)
    #18918
  - Upgrade node-inspect to 1.11.5 (Jan Krems)
    #21055
* fs,net:
  - support as and as+ flags in stringToFlags() (Sarat Addepalli)
    #18801
  - emit 'ready' for fs streams and sockets (Sameer Srivastava)
    #19408
* http, http2:
  - add options to http.createServer() (Peter Marton)
    #15752
  - add 103 Early Hints status code (Yosuke Furukawa)
    #16644
  - add http fallback options to .createServer (Peter Marton)
    #15752
* n-api:
  - take n-api out of experimental (Michael Dawson)
    #19262
* perf_hooks:
  - add warning when too many entries in the timeline (James M Snell)
    #18087
* src:
  - add public API for managing NodePlatform (Cheng Zhao)
    #16981
  - allow --perf-(basic-)?prof in NODE\_OPTIONS (Leko)
    #17600
  - node internals' postmortem metadata (Matheus Marchini)
    #14901
* tls:
  - expose Finished messages in TLSSocket (Anton Salikhmetov)
    #19102
* **trace_events**:
  - add file pattern cli option (Andreas Madsen)
    #18480
* util:
  - implement util.getSystemErrorName() (Joyee Cheung)
    #18186

PR-URL: #21593

Notable Changes:

* async_hooks:
  - rename PromiseWrap.parentId (Ali Ijaz Sheikh)
    #18633
  - remove runtime deprecation (Ali Ijaz Sheikh)
    #19517
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    #18513
* cluster:
  - add cwd to cluster.settings (cjihrig)
    #18399
  - support windowsHide option for workers (Todd Wong)
    #17412
* crypto:
  - allow passing null as IV unless required (Tobias Nießen)
    #18644
* deps:
  - upgrade npm to 6.2.0 (Kat Marchán)
    #21592
  - upgrade libuv to 1.19.2 (cjihrig)
    #18918
  - Upgrade node-inspect to 1.11.5 (Jan Krems)
    #21055
* fs,net:
  - support as and as+ flags in stringToFlags() (Sarat Addepalli)
    #18801
  - emit 'ready' for fs streams and sockets (Sameer Srivastava)
    #19408
* http, http2:
  - add options to http.createServer() (Peter Marton)
    #15752
  - add 103 Early Hints status code (Yosuke Furukawa)
    #16644
  - add http fallback options to .createServer (Peter Marton)
    #15752
* n-api:
  - take n-api out of experimental (Michael Dawson)
    #19262
* perf_hooks:
  - add warning when too many entries in the timeline (James M Snell)
    #18087
* src:
  - add public API for managing NodePlatform (Cheng Zhao)
    #16981
  - allow --perf-(basic-)?prof in NODE\_OPTIONS (Leko)
    #17600
  - node internals' postmortem metadata (Matheus Marchini)
    #14901
* tls:
  - expose Finished messages in TLSSocket (Anton Salikhmetov)
    #19102
* **trace_events**:
  - add file pattern cli option (Andreas Madsen)
    #18480
* util:
  - implement util.getSystemErrorName() (Joyee Cheung)
    #18186

PR-URL: #21593

Notable Changes:

* async_hooks:
  - rename PromiseWrap.parentId (Ali Ijaz Sheikh)
    #18633
  - remove runtime deprecation (Ali Ijaz Sheikh)
    #19517
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    #18513
* cluster:
  - add cwd to cluster.settings (cjihrig)
    #18399
  - support windowsHide option for workers (Todd Wong)
    #17412
* crypto:
  - allow passing null as IV unless required (Tobias Nießen)
    #18644
* deps:
  - upgrade npm to 6.2.0 (Kat Marchán)
    #21592
  - upgrade libuv to 1.19.2 (cjihrig)
    #18918
  - Upgrade node-inspect to 1.11.5 (Jan Krems)
    #21055
* fs,net:
  - support as and as+ flags in stringToFlags() (Sarat Addepalli)
    #18801
  - emit 'ready' for fs streams and sockets (Sameer Srivastava)
    #19408
* http, http2:
  - add options to http.createServer() (Peter Marton)
    #15752
  - add 103 Early Hints status code (Yosuke Furukawa)
    #16644
  - add http fallback options to .createServer (Peter Marton)
    #15752
* n-api:
  - take n-api out of experimental (Michael Dawson)
    #19262
* perf_hooks:
  - add warning when too many entries in the timeline (James M Snell)
    #18087
* src:
  - add public API for managing NodePlatform (Cheng Zhao)
    #16981
  - allow --perf-(basic-)?prof in NODE\_OPTIONS (Leko)
    #17600
  - node internals' postmortem metadata (Matheus Marchini)
    #14901
* tls:
  - expose Finished messages in TLSSocket (Anton Salikhmetov)
    #19102
* **trace_events**:
  - add file pattern cli option (Andreas Madsen)
    #18480
* util:
  - implement util.getSystemErrorName() (Joyee Cheung)
    #18186

PR-URL: #21593

Notable Changes:

* async_hooks:
  - rename PromiseWrap.parentId (Ali Ijaz Sheikh)
    #18633
  - remove runtime deprecation (Ali Ijaz Sheikh)
    #19517
  - deprecate unsafe emit{Before,After} (Ali Ijaz Sheikh)
    #18513
* cluster:
  - add cwd to cluster.settings (cjihrig)
    #18399
  - support windowsHide option for workers (Todd Wong)
    #17412
* crypto:
  - allow passing null as IV unless required (Tobias Nießen)
    #18644
* deps:
  - upgrade npm to 6.2.0 (Kat Marchán)
    #21592
  - upgrade libuv to 1.19.2 (cjihrig)
    #18918
  - Upgrade node-inspect to 1.11.5 (Jan Krems)
    #21055
* fs,net:
  - support as and as+ flags in stringToFlags() (Sarat Addepalli)
    #18801
  - emit 'ready' for fs streams and sockets (Sameer Srivastava)
    #19408
* http, http2:
  - add options to http.createServer() (Peter Marton)
    #15752
  - add 103 Early Hints status code (Yosuke Furukawa)
    #16644
  - add http fallback options to .createServer (Peter Marton)
    #15752
* n-api:
  - take n-api out of experimental (Michael Dawson)
    #19262
* perf_hooks:
  - add warning when too many entries in the timeline (James M Snell)
    #18087
* src:
  - add public API for managing NodePlatform (Cheng Zhao)
    #16981
  - allow --perf-(basic-)?prof in NODE\_OPTIONS (Leko)
    #17600
  - node internals' postmortem metadata (Matheus Marchini)
    #14901
* tls:
  - expose Finished messages in TLSSocket (Anton Salikhmetov)
    #19102
* **trace_events**:
  - add file pattern cli option (Andreas Madsen)
    #18480
* util:
  - implement util.getSystemErrorName() (Joyee Cheung)
    #18186

PR-URL: #21593