Merge pull request #5033 from apple/no-assertions-preset

[Preset] Add support for no assertions preset

Author: shahmishal

utils/build-presets.ini

@@ -134,6 +134,20 @@ swift-stdlib-build-type=RelWithDebInfo
 swift-stdlib-enable-assertions=false
 build-serialized-stdlib-unittest
 
+[preset: mixin_buildbot_tools_R_stdlib_RD]
+mixin-preset=
+    mixin_buildbot_trunk_base
+    mixin_buildbot_install_components
+
+# Build Release without debug info, because it is faster to build.
+release
+no-assertions
+
+dash-dash
+
+swift-stdlib-build-type=RelWithDebInfo
+swift-stdlib-enable-assertions=false
+build-serialized-stdlib-unittest
 
 [preset: mixin_buildbot_tools_RA_stdlib_DA]
 mixin-preset=
@@ -174,6 +188,19 @@ skip-test-ios-host
 skip-test-tvos-host
 skip-test-watchos-host
 
+preset: buildbot,tools=R,stdlib=RD]
+mixin-preset=
+    mixin_buildbot_tools_R_stdlib_RD
+
+dash-dash
+
+# Don't run host tests for iOS, tvOS and watchOS platforms to make the build
+# faster.
+skip-test-ios-host
+skip-test-tvos-host
+skip-test-watchos-host
+
+
 [preset: buildbot,tools=RA,stdlib=RDA]
 mixin-preset=
     mixin_buildbot_tools_RA_stdlib_RDA