Perform additional checks on catch parameter declaration

KT-8320 It should not be possible to catch a type parameter type
KT-7645 Prohibit default value for `catch`-block parameter

compiler/testData/diagnostics/tests/controlStructures/catchGenerics.kt

@@ -19,3 +19,7 @@ inline fun <reified E : Exception, R> tryCatch(lazy: () -> R, failure: (E) -> R)
     } catch (<!REIFIED_TYPE_IN_CATCH_CLAUSE!>e: E<!>) {
         failure(e)
     }
+
+fun <T : Throwable> tryCatch() {
+    try { } catch (<!TYPE_PARAMETER_IN_CATCH_CLAUSE!>e: T<!>) { }
+}

compiler/testData/diagnostics/tests/controlStructures/catchGenerics.txt

@@ -1,6 +1,7 @@
 package
 
 public fun bar(): kotlin.Unit
+public fun </*0*/ T : kotlin.Throwable> tryCatch(): kotlin.Unit
 public inline fun </*0*/ reified E : kotlin.Exception /* = java.lang.Exception */, /*1*/ R> tryCatch(/*0*/ lazy: () -> R, /*1*/ failure: (E) -> R): R
 
 public final class XException</*0*/ T> : kotlin.Throwable {

compiler/testData/diagnostics/tests/controlStructures/catchWithDefault.kt

@@ -0,0 +1,3 @@
+fun test() {
+    try { } catch (<!CATCH_PARAMETER_WITH_DEFAULT_VALUE!>e: Exception = <!DEBUG_INFO_MISSING_UNRESOLVED!>Exception<!>()<!>) { }
+}

compiler/testData/diagnostics/tests/controlStructures/catchWithDefault.txt

@@ -0,0 +1,3 @@
+package
+
+public fun test(): kotlin.Unit