hg: jdk/jdk13: 8227640: javac crashes on text blocks with invalid escapes.

[jan.lahoda at oracle.com]

Changeset: 1bb102c1cf27
Author:    jlahoda
Date:      2019-07-16 10:48 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk13/rev/1bb102c1cf27

8227640: javac crashes on text blocks with invalid escapes.
Summary: Do not translate escape sequences if text block contains illegal escapes.
Reviewed-by: jlaskey

! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavaTokenizer.java
+ test/langtools/tools/javac/TextBlockIllegalEscape.java
+ test/langtools/tools/javac/TextBlockIllegalEscape.out