Remove assertion that is no longer valid in InitializeStringSearch.

This assertion is no longer valid because r5380 changes the assumption
about the pat parameter.

In addition, we embed the no allocation part of StringSplit in a block
to reenable allocation later in that method.


Review URL: http://codereview.chromium.org/3254010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/runtime.cc

@@ -2913,7 +2913,6 @@ enum StringSearchStrategy { SEARCH_FAIL, SEARCH_SHORT, SEARCH_LONG };
 template <typename pchar>
 static inline StringSearchStrategy InitializeStringSearch(
     Vector<const pchar> pat, bool ascii_subject) {
-  ASSERT(pat.length() > 1);
   // We have an ASCII haystack and a non-ASCII needle. Check if there
   // really is a non-ASCII character in the needle and bail out if there
   // is.
@@ -5237,39 +5236,44 @@ static Object* Runtime_StringSplit(Arguments args) {
   int initial_capacity = Min<uint32_t>(kMaxInitialListCapacity, limit);
   ZoneList<int> indices(initial_capacity);
   if (!pattern->IsFlat()) FlattenString(pattern);
-  AssertNoAllocation nogc;
-  if (subject->IsAsciiRepresentation()) {
-    Vector<const char> subject_vector = subject->ToAsciiVector();
-    if (pattern->IsAsciiRepresentation()) {
-      FindStringIndices(subject_vector,
-                        pattern->ToAsciiVector(),
-                        &indices,
-                        limit);
-    } else {
-      FindStringIndices(subject_vector,
-                        pattern->ToUC16Vector(),
-                        &indices,
-                        limit);
-    }
-  } else {
-    Vector<const uc16> subject_vector = subject->ToUC16Vector();
-    if (pattern->IsAsciiRepresentation()) {
-      FindStringIndices(subject_vector,
-                        pattern->ToAsciiVector(),
-                        &indices,
-                        limit);
+
+  // No allocation block.
+  {
+    AssertNoAllocation nogc;
+    if (subject->IsAsciiRepresentation()) {
+      Vector<const char> subject_vector = subject->ToAsciiVector();
+      if (pattern->IsAsciiRepresentation()) {
+        FindStringIndices(subject_vector,
+                          pattern->ToAsciiVector(),
+                          &indices,
+                          limit);
+      } else {
+        FindStringIndices(subject_vector,
+                          pattern->ToUC16Vector(),
+                          &indices,
+                          limit);
+      }
     } else {
-      FindStringIndices(subject_vector,
-                        pattern->ToUC16Vector(),
-                        &indices,
-                        limit);
+      Vector<const uc16> subject_vector = subject->ToUC16Vector();
+      if (pattern->IsAsciiRepresentation()) {
+        FindStringIndices(subject_vector,
+                          pattern->ToAsciiVector(),
+                          &indices,
+                          limit);
+      } else {
+        FindStringIndices(subject_vector,
+                          pattern->ToUC16Vector(),
+                          &indices,
+                          limit);
+      }
     }
   }
+
   if (static_cast<uint32_t>(indices.length()) < limit) {
     indices.Add(subject_length);
   }
-  // The list indices now contains the end of each part to create.
 
+  // The list indices now contains the end of each part to create.
 
   // Create JSArray of substrings separated by separator.
   int part_count = indices.length();