Camel Case and JavaBean completion

This is just too useful to leave on the cutting room floor.

```
scala> classOf[String].enclo<TAB>

scala> classOf[String].getEnclosing
getEnclosingClass   getEnclosingConstructor   getEnclosingMethod

scala> classOf[String].simpl<TAB>

scala> classOf[String].getSimpleName

type X = global.TTWD<TAB>

scala> type X = global.TypeTreeWithDeferredRefCheck
```

I revised the API of `matchingResults` as it was clunky to reuse
the filtering on accessibility and term/type-ness while providing
a custom name matcher.

1 files changed, 11 insertions, 0 deletions

diff --git a/test/junit/scala/tools/nsc/interpreter/CompletionTest.scala b/test/junit/scala/tools/nsc/interpreter/CompletionTest.scala
index 75ab4c605f..a55a3c66c0 100644
--- a/test/junit/scala/tools/nsc/interpreter/CompletionTest.scala
+++ b/test/junit/scala/tools/nsc/interpreter/CompletionTest.scala
@@ -52,6 +52,17 @@ class CompletionTest {
   }
 
   @Test
+  def camelCompletions(): Unit = {
+    val intp = newIMain()
+    val completer = new PresentationCompilerCompleter(intp)
+    checkExact(completer, "object O { def theCatSatOnTheMat = 1 }; import O._; tCSO")("theCatSatOnTheMat")
+    checkExact(completer, "object O { def getBlerganator = 1 }; import O._; blerga")("getBlerganator")
+    checkExact(completer, "object O { def xxxxYyyyyZzzz = 1; def xxxxYyZeee = 1 }; import O._; xYZ")("", "xxxxYyyyyZzzz", "xxxxYyZeee")
+    checkExact(completer, "object O { def xxxxYyyyyZzzz = 1; def xxxxYyyyyZeee = 1 }; import O._; xYZ")("xxxxYyyyyZzzz", "xxxxYyyyyZeee")
+    checkExact(completer, "object O { class AbstractMetaFactoryFactory }; new O.AMFF")("AbstractMetaFactoryFactory")
+  }
+
+  @Test
   def previousLineCompletions(): Unit = {
     val intp = newIMain()
     intp.interpret("class C { val x_y_z = 42 }")