honor completion-case-sensitive=ALL option in the new matcher

java/java-tests/testData/codeInsight/completion/normalSorting/UppercaseMatters2.java

@@ -0,0 +1,9 @@
+class Foo {
+  {
+    Object classLOSomething;
+    Object classLoader;
+    Object classLoader2;
+    cLo<caret>
+  }
+
+}

java/java-tests/testSrc/com/intellij/codeInsight/completion/NormalCompletionOrderingTest.java

@@ -5,6 +5,7 @@
 package com.intellij.codeInsight.completion;
 
 import com.intellij.JavaTestUtil;
+import com.intellij.codeInsight.CodeInsightSettings;
 import com.intellij.codeInsight.lookup.LookupElement;
 import com.intellij.codeInsight.lookup.impl.LookupImpl;
 import com.intellij.psi.PsiClass;
@@ -59,6 +60,17 @@ public class NormalCompletionOrderingTest extends CompletionSortingTestCase {
     assertPreferredItems(0, "p", "pre", "param");
   }
 
+  public void testUppercaseMatters2() throws Throwable {
+    final int old = CodeInsightSettings.getInstance().COMPLETION_CASE_SENSITIVE;
+    try {
+      CodeInsightSettings.getInstance().COMPLETION_CASE_SENSITIVE = CodeInsightSettings.ALL;
+      checkPreferredItems(0, "classLoader", "classLoader2");
+    }
+    finally {
+      CodeInsightSettings.getInstance().COMPLETION_CASE_SENSITIVE = old;
+    }
+  }
+
   public void testShorterShouldBePreselected() throws Throwable {
     checkPreferredItems(0, "foo", "fooLongButOfDefaultType");
   }