hg: amber/amber: Bring up to date

[james.laskey at oracle.com]

Changeset: f90b1c5baa1d
Author:    jlaskey
Date:      2019-06-05 13:10 -0300
URL:       http://hg.openjdk.java.net/amber/amber/rev/f90b1c5baa1d

Bring up to date

! src/java.base/share/classes/java/lang/String.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavaTokenizer.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/resources/compiler.properties
! test/jdk/java/lang/String/Formatted.java
! test/jdk/java/lang/String/StripIndent.java
! test/jdk/java/lang/String/TranslateEscapes.java
! test/langtools/tools/javac/TextBlockAPI.java
! test/langtools/tools/javac/TextBlockLang.java
! test/langtools/tools/javac/diags/examples/TextBlockWhitespace.java