Optimize constant conditions

Using basic constant propagation (only integer constants, no arithmetic
calculations), rewrite conditional jump instructions with constant
arguments.

This covers problem description in KT-17007.
Note that it also works transparently with inline functions.
Partial evaluation is required to cover more "advanced" cases.

As a side effect, this also covers KT-3098:
rewrite IF_ICMP<cmp_op>(x, 0) to IF<cmp0_op>(x).

compiler/testData/codegen/bytecodeText/constantConditions/kt3098.kt

@@ -0,0 +1,9 @@
+fun testLt(x: String, y: String) = x < y
+fun testLe(x: String, y: String) = x <= y
+fun testGt(x: String, y: String) = x > y
+fun testGe(x: String, y: String) = x >= y
+
+// 0 IF_ICMPGE
+// 0 IF_ICMPGT
+// 0 IF_ICMPLE
+// 0 IF_ICMPLT