Issue 1551. Report error for new-line in single-line raw string.

compiler/java/com/google/dart/compiler/parser/DartScanner.java

Index: compiler/java/com/google/dart/compiler/parser/DartScanner.java
diff --git a/compiler/java/com/google/dart/compiler/parser/DartScanner.java b/compiler/java/com/google/dart/compiler/parser/DartScanner.java
index 5cd44292c5c2388c0fa99702be067290c4c847bd..e710149510e67e59db80fad5896d45b09ee62252 100644
--- a/compiler/java/com/google/dart/compiler/parser/DartScanner.java
+++ b/compiler/java/com/google/dart/compiler/parser/DartScanner.java
@@ -861,7 +861,7 @@ public class DartScanner {
     int quote = internalState.getQuote();
     boolean multiLine = internalState.isMultiLine();
     // TODO(floitsch): Do we really need a StringBuffer to accumulate the characters?
-    StringBuffer tokenValueBuffer = new StringBuffer();
+    StringBuilder tokenValueBuffer = new StringBuilder();
     while (true) {
       if (isEos()) {
         // Unterminated string (either multi-line or not).
@@ -880,6 +880,11 @@ public class DartScanner {
           advance();
           break;
         }
+      } else if (c == '\n' && !multiLine) {

[codefu, 2012/02/16 18:59:38]

Will this catch the case on windows as well?

[scheglov, 2012/02/16 19:13:26]

Yes, on Windows \r\n is used.

+        advance();
+        internalState.popMode();
+        // unterminated (non multi-line) string
+        return Token.ILLEGAL;
       }
       tokenValueBuffer.appendCodePoint(c);
     }