Fix integer literals which are cast to bool

This change replaces built-in types that are implicitly converted to
booleans.

Differential revision: https://reviews.llvm.org/D62284

llvm-svn: 361580
diff --git a/lldb/source/Target/Target.cpp b/lldb/source/Target/Target.cpp
index fd54d40..14755f6 100644
--- a/lldb/source/Target/Target.cpp
+++ b/lldb/source/Target/Target.cpp
@@ -1856,7 +1856,7 @@
   out_str.clear();
   addr_t curr_addr = addr.GetLoadAddress(this);
   Address address(addr);
-  while (1) {
+  while (true) {
     size_t length = ReadCStringFromMemory(address, buf, sizeof(buf), error);
     if (length == 0)
       break;