Index: COFF/InputFiles.cpp
===================================================================
--- COFF/InputFiles.cpp
+++ COFF/InputFiles.cpp
@@ -411,7 +411,7 @@
 // Returns a string in the format of "foo.obj" or "foo.obj(bar.lib)".
 std::string lld::toString(coff::InputFile *File) {
   if (!File)
-    return "(internal)";
+    return "<internal>";
   if (File->ParentName.empty())
     return File->getName().lower();
 
Index: COFF/SymbolTable.cpp
===================================================================
--- COFF/SymbolTable.cpp
+++ COFF/SymbolTable.cpp
@@ -200,8 +200,7 @@
 
 void SymbolTable::reportDuplicate(Symbol *Existing, InputFile *NewFile) {
   error("duplicate symbol: " + toString(*Existing) + " in " +
-        toString(Existing->getFile()) + " and in " +
-        (NewFile ? toString(NewFile) : "(internal)"));
+        toString(Existing->getFile()) + " and in " + toString(NewFile));
 }
 
 Symbol *SymbolTable::addAbsolute(StringRef N, COFFSymbolRef Sym) {
Index: ELF/InputFiles.h
===================================================================
--- ELF/InputFiles.h
+++ ELF/InputFiles.h
@@ -42,7 +42,7 @@
 class InputFile;
 }
 
-// Returns "(internal)", "foo.a(bar.o)" or "baz.o".
+// Returns "<internal>", "foo.a(bar.o)" or "baz.o".
 std::string toString(const elf::InputFile *F);
 
 namespace elf {
Index: ELF/InputSection.cpp
===================================================================
--- ELF/InputSection.cpp
+++ ELF/InputSection.cpp
@@ -308,7 +308,7 @@
 std::string InputSectionBase::getObjMsg(uint64_t Off) {
   // Synthetic sections don't have input files.
   if (!File)
-    return ("(internal):(" + Name + "+0x" + utohexstr(Off) + ")").str();
+    return ("<internal>:(" + Name + "+0x" + utohexstr(Off) + ")").str();
   std::string Filename = File->getName();
 
   std::string Archive;
Index: test/ELF/duplicated-synthetic-sym.s
===================================================================
--- test/ELF/duplicated-synthetic-sym.s
+++ test/ELF/duplicated-synthetic-sym.s
@@ -4,7 +4,7 @@
 // RUN: not ld.lld %t.o --format binary duplicated-synthetic-sym.s -o %t.elf 2>&1 | FileCheck %s
 
 // CHECK: duplicate symbol: _binary_duplicated_synthetic_sym_s_start
-// CHECK: defined at (internal):(.data+0x0)
+// CHECK: defined at <internal>:(.data+0x0)
 
     .globl  _binary_duplicated_synthetic_sym_s_start
 _binary_duplicated_synthetic_sym_s_start:
Index: wasm/SymbolTable.cpp
===================================================================
--- wasm/SymbolTable.cpp
+++ wasm/SymbolTable.cpp
@@ -86,7 +86,7 @@
   if (Existing->isFunction() == NewIsFunction)
     return;
 
-  std::string Filename = "<builtin>";
+  std::string Filename = "<internal>";
   if (Existing->getFile())
     Filename = toString(Existing->getFile());
   error("symbol type mismatch: " + New->Name + "\n>>> defined as " +