SI-7919 Newline after empty string interp

Consume the newline non-raw for safe handling after
single-line interpolation.

1 files changed, 5 insertions, 2 deletions

diff --git a/src/compiler/scala/tools/nsc/ast/parser/Scanners.scala b/src/compiler/scala/tools/nsc/ast/parser/Scanners.scala
index 8011abc1ed..e8d46704c3 100644
--- a/src/compiler/scala/tools/nsc/ast/parser/Scanners.scala
+++ b/src/compiler/scala/tools/nsc/ast/parser/Scanners.scala
@@ -475,14 +475,17 @@ trait Scanners extends ScannersCommon {
             if (token == INTERPOLATIONID) {
               nextRawChar()
               if (ch == '\"') {
-                nextRawChar()
-                if (ch == '\"') {
+                val lookahead = lookaheadReader
+                lookahead.nextChar()
+                if (lookahead.ch == '\"') {
+                  nextRawChar()                        // now eat it
                   offset += 3
                   nextRawChar()
                   getStringPart(multiLine = true)
                   sepRegions = STRINGPART :: sepRegions // indicate string part
                   sepRegions = STRINGLIT :: sepRegions // once more to indicate multi line string part
                 } else {
+                  nextChar()
                   token = STRINGLIT
                   strVal = ""
                 }