Breakpoint validation for export assignment

src/services/breakpoints.ts

@@ -119,6 +119,9 @@ module ts.BreakpointResolver {
                     case SyntaxKind.ThrowStatement:
                         return spanInThrowStatement(<ThrowStatement>node);
 
+                    case SyntaxKind.ExportAssignment:
+                        return spanInExportAssignment(<ExportAssignment>node);
+
                     case SyntaxKind.BinaryExpression:
                     case SyntaxKind.PostfixOperator:
                     case SyntaxKind.PrefixOperator:
@@ -351,6 +354,10 @@ module ts.BreakpointResolver {
                 return textSpan(throwStatement, throwStatement.expression);
             }
 
+            function spanInExportAssignment(exportAssignment: ExportAssignment): TypeScript.TextSpan {
+                return textSpan(exportAssignment, exportAssignment.exportName);
+            }
+
             function spanInExpression(expression: Expression): TypeScript.TextSpan {
                 //TODO (pick this up later) for now lets fix do-while baseline
                if (node.parent.kind === SyntaxKind.DoStatement) {
                     // Set span as if on while keyword

tests/baselines/reference/bpSpan_exportAssignment.baseline

@@ -0,0 +1,17 @@
+
+1  >class a {
+
+    ~~~~~~~~~~                                    => Pos: (0 to 9)  SpanInfo: undefined
+--------------------------------
+2  >    public c;
+
+    ~~~~~~~~~~~~~~                                => Pos: (10 to 23)  SpanInfo: undefined
+--------------------------------
+3  >}
+
+    ~~                                            => Pos: (24 to 25)  SpanInfo: undefined
+--------------------------------
+4  >export = a;
+    ~~~~~~~~~~~                                   => Pos: (26 to 36)  SpanInfo: {"start":26,"length":10}
+    >export = a
+    >:=> (line 4, col 0) to (line 4, col 10)