hg: jdk9/sandbox/langtools: 8139751: Javac crash with -XDallowStringFolding=false

[chris.hegarty at oracle.com]

Changeset: 777c5a760a84
Author:    jlahoda
Date:      2015-10-19 12:41 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/777c5a760a84

8139751: Javac crash with -XDallowStringFolding=false
Summary: When string folding is disabled, need to keep the original expression.
Reviewed-by: mcimadamore

! src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java
! test/tools/javac/parser/StringFoldingTest.java