Corrected implementation of TwoByteExternalBufferedStream.

test/cctest/parsing/test-scanner-streams.cc

Index: test/cctest/parsing/test-scanner-streams.cc
diff --git a/test/cctest/parsing/test-scanner-streams.cc b/test/cctest/parsing/test-scanner-streams.cc
index fffd1200f20621d1aba7469e1d06bfa3b61bb26a..0e9f3dc502466e742a76b149c4e2badfdab55b13 100644
--- a/test/cctest/parsing/test-scanner-streams.cc
+++ b/test/cctest/parsing/test-scanner-streams.cc
@@ -27,7 +27,7 @@ class ChunkSource : public v8::ScriptCompiler::ExternalSourceStream {
     // If extra_chunky, we'll use increasingly large chunk sizes.
     // If not, we'll have a single chunk of full length.
     size_t chunk_size = extra_chunky ? 1 : len;
-    for (size_t i = 0; i < len; i += chunk_size, chunk_size *= 2) {
+    for (size_t i = 0; i < len; i += chunk_size, chunk_size++) {
       chunks_.push_back({data + i, i::Min(chunk_size, len - i)});
     }
     chunks_.push_back({nullptr, 0});