Index: cfe/trunk/lib/Format/UnwrappedLineFormatter.cpp
===================================================================
--- cfe/trunk/lib/Format/UnwrappedLineFormatter.cpp
+++ cfe/trunk/lib/Format/UnwrappedLineFormatter.cpp
@@ -517,8 +517,13 @@
       } else if (Limit != 0 && !Line.startsWith(tok::kw_namespace) &&
                  !startsExternCBlock(Line)) {
         // We don't merge short records.
-        FormatToken *RecordTok =
-            Line.First->is(tok::kw_typedef) ? Line.First->Next : Line.First;
+        FormatToken *RecordTok = Line.First;
+        // Skip record modifiers.
+        while (RecordTok->Next &&
+               RecordTok->isOneOf(tok::kw_typedef, tok::kw_export,
+                                  Keywords.kw_declare, Keywords.kw_abstract,
+                                  tok::kw_default))
+          RecordTok = RecordTok->Next;
         if (RecordTok &&
             RecordTok->isOneOf(tok::kw_class, tok::kw_union, tok::kw_struct,
                                Keywords.kw_interface))
Index: cfe/trunk/unittests/Format/FormatTestJS.cpp
===================================================================
--- cfe/trunk/unittests/Format/FormatTestJS.cpp
+++ cfe/trunk/unittests/Format/FormatTestJS.cpp
@@ -1674,9 +1674,15 @@
                "  x: number;\n"
                "  y: string;\n"
                "}");
-  verifyFormat("export class X { y: number; }");
-  verifyFormat("export abstract class X { y: number; }");
-  verifyFormat("export default class X { y: number }");
+  verifyFormat("export class X {\n"
+               "  y: number;\n"
+               "}");
+  verifyFormat("export abstract class X {\n"
+               "  y: number;\n"
+               "}");
+  verifyFormat("export default class X {\n"
+               "  y: number\n"
+               "}");
   verifyFormat("export default function() {\n  return 1;\n}");
   verifyFormat("export var x = 12;");
   verifyFormat("class C {}\n"
@@ -1698,7 +1704,9 @@
                "];");
   verifyFormat("export default [];");
   verifyFormat("export default () => {};");
-  verifyFormat("export interface Foo { foo: number; }\n"
+  verifyFormat("export interface Foo {\n"
+               "  foo: number;\n"
+               "}\n"
                "export class Bar {\n"
                "  blah(): string {\n"
                "    return this.blah;\n"