[clangd] Boost fuzzy match score by 2x (so a maximum of 2) when the query is the full identifier name.

Summary: Fix a couple of bugs in tests an in Quality to keep tests passing.

Reviewers: ioeric

Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D47815

llvm-svn: 334089
diff --git a/clang-tools-extra/clangd/Quality.cpp b/clang-tools-extra/clangd/Quality.cpp
index 1021456..6034faa 100644
--- a/clang-tools-extra/clangd/Quality.cpp
+++ b/clang-tools-extra/clangd/Quality.cpp
@@ -131,6 +131,8 @@
       Score *= 1.1;
       break;
     case Namespace:
+      Score *= 0.8;
+      break;
     case Macro:
       Score *= 0.2;
       break;