hg: amber/amber: dont generate initialization code if the canonical constructor doesn't completes normally, additional tests

[vicente.romero at oracle.com]

Changeset: 362ffdb9571b
Author:    vromero
Date:      2019-09-10 19:02 -0400
URL:       https://hg.openjdk.java.net/amber/amber/rev/362ffdb9571b

dont generate initialization code if the canonical constructor doesn't completes normally, additional tests

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java
! test/langtools/tools/javac/records/RecordCompilationTests.java