[Runtime] Define type metadata for Builtin.Int1 and Builtin.Int63.

These types are used in the standard library.

Author: DougGregor

include/swift/Runtime/BuiltinTypes.def

@@ -32,9 +32,11 @@
                   "Builtin.Vec" #Width "x" #ElementName)
 #endif
 
+BUILTIN_TYPE(Bi1_, "Builtin.Int1")
 BUILTIN_TYPE(Bi8_, "Builtin.Int8")
 BUILTIN_TYPE(Bi16_, "Builtin.Int16")
 BUILTIN_TYPE(Bi32_, "Builtin.Int32")
+BUILTIN_TYPE(Bi63_, "Builtin.Int63")
 BUILTIN_TYPE(Bi64_, "Builtin.Int64")
 BUILTIN_TYPE(Bi128_, "Builtin.Int128")
 BUILTIN_TYPE(Bi256_, "Builtin.Int256")

validation-test/stdlib/MicroStdlib/Inputs/RuntimeStubs.c

@@ -1,6 +1,8 @@
 int $sBi32_N;
 int $sBi64_N;
 int $sBi8_N;
+int $sBwN;
+int $sBpN;
 int $sBi32_WV;
 int $sBi64_WV;
 int $sBi8_WV;