Added tests

#KT-6179 Fixed
  #KT-8132 Fixed

compiler/testData/diagnostics/tests/inference/regressions/kt8132.kt

@@ -0,0 +1,11 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+// KT-8132 Can't omit lambda parameter types
+
+fun <T> test(foo: List<T>): T {
+    return if (true)
+        throw IllegalStateException()
+    else
+        foo.reduce { left, right -> left } // error: inferred type T is not subtype Nothing
+}
+
+fun <S, T: S> Iterable<T>.reduce(operation: (S, T) -> S): S = throw Exception()

compiler/testData/diagnostics/tests/inference/regressions/kt8132.txt

@@ -0,0 +1,4 @@
+package
+
+internal fun </*0*/ T> test(/*0*/ foo: kotlin.List<T>): T
+internal fun </*0*/ S, /*1*/ T : S> kotlin.Iterable<T>.reduce(/*0*/ operation: (S, T) -> S): S

compiler/tests/org/jetbrains/kotlin/checkers/JetDiagnosticsTestGenerated.java

@@ -7175,6 +7175,12 @@ public class JetDiagnosticsTestGenerated extends AbstractJetDiagnosticsTest {
                     doTest(fileName);
                 }
 
+                @TestMetadata("kt8132.kt")
+                public void testKt8132() throws Exception {
+                    String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/inference/regressions/kt8132.kt");
+                    doTest(fileName);
+                }
+
                 @TestMetadata("kt832.kt")
                 public void testKt832() throws Exception {
                     String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/inference/regressions/kt832.kt");

idea/idea-completion/testData/handlers/smart/kt6179filterTo.kt

@@ -0,0 +1,10 @@
+import java.util.ArrayList
+
+fun foo(c: Collection<String>) {
+    val list = ArrayList<String>()
+    c.filterTo0(<caret>)
+}
+
+fun <T, C : MutableCollection<in T>> Iterable<T>.filterTo0(destination: C, predicate: (T) -> Boolean): C = destination
+
+//ELEMENT: list

idea/idea-completion/testData/handlers/smart/kt6179filterTo.kt.after

@@ -0,0 +1,10 @@
+import java.util.ArrayList
+
+fun foo(c: Collection<String>) {
+    val list = ArrayList<String>()
+    c.filterTo0(list)
+}
+
+fun <T, C : MutableCollection<in T>> Iterable<T>.filterTo0(destination: C, predicate: (T) -> Boolean): C = destination
+
+//ELEMENT: list

idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/handlers/SmartCompletionHandlerTestGenerated.java

@@ -443,6 +443,12 @@ public class SmartCompletionHandlerTestGenerated extends AbstractSmartCompletion
         doTest(fileName);
     }
 
+    @TestMetadata("kt6179filterTo.kt")
+    public void testKt6179filterTo() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/idea-completion/testData/handlers/smart/kt6179filterTo.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("Lambda1.kt")
     public void testLambda1() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/idea-completion/testData/handlers/smart/Lambda1.kt");