gc: backslash newline is not a legal escape sequence in strings

Fixes #827.

R=ken2
CC=golang-dev, rsc
https://golang.org/cl/1592041

diff --git a/src/cmd/gc/lex.c b/src/cmd/gc/lex.c
index 1bf51a70a44e14711aa4c99819e5b8d427bddf48..f50c857a6641a8b991af958783103487949183ed 100644 (file)
--- a/src/cmd/gc/lex.c
+++ b/src/cmd/gc/lex.c
@@ -1160,7 +1160,6 @@ escchar(int e, int *escflg, vlong *val)
 
        *escflg = 0;
 
-loop:
        c = getr();
        switch(c) {
        case EOF:
@@ -1180,9 +1179,6 @@ loop:
 
        c = getr();
        switch(c) {
-       case '\n':
-               goto loop;
-
        case 'x':
                *escflg = 1;    // it's a byte
                i = 2;