Support additional intrinsics in null check elimination

1. checkExpressionValueIsNotNull implies checked value is non-null

2. throwNpe never returns

 #KT-18162 Fixed Target versions 1.1.4
 #KT-18164 Fixed Target versions 1.1.4

compiler/testData/codegen/bytecodeText/nullCheckOptimization/expressionValueIsNotNull.kt

@@ -0,0 +1,23 @@
+// FILE: j/J.java
+
+package j;
+
+public class J {
+    public static final String ok() { return "OK"; }
+}
+
+// FILE: k.kt
+import j.J
+
+fun foo(a: Any) {}
+
+fun test() {
+    val a = J.ok()
+    foo(a)
+    if (a == null) foo("NULL-1")
+}
+
+// @KKt.class:
+// 0 IFNULL
+// 0 IFNONNULL
+// 0 NULL-1

compiler/testData/codegen/bytecodeText/nullCheckOptimization/expressionValueIsNotNullAfterExclExcl.kt

@@ -0,0 +1,24 @@
+// FILE: j/J.java
+
+package j;
+
+public class J {
+    public static final String ok() { return "OK"; }
+}
+
+// FILE: k.kt
+import j.J
+
+fun foo(a: Any) {}
+
+fun test() {
+    val a = J.ok()
+    a!!
+    foo(a)
+    if (a == null) foo("NULL-1")
+}
+
+// @KKt.class:
+// 0 IFNULL
+// 1 IFNONNULL
+// 0 NULL-1

compiler/testData/codegen/bytecodeText/nullCheckOptimization/expressionValueIsNotNullTwice.kt

@@ -0,0 +1,23 @@
+// FILE: j/J.java
+
+package j;
+
+public class J {
+    public static final String ok() { return "OK"; }
+}
+
+// FILE: foo.kt
+fun foo(a: Any) {}
+
+// FILE: k.kt
+import j.J
+
+fun test() {
+    val a = J.ok()
+    foo(a)
+    foo(a)
+}
+
+// @KKt.class:
+// 1 LDC "a"
+// 1 checkExpressionValueIsNotNull