Fix bogus warning about numeric overflow when value is zero

#KT-17149 Fixed

compiler/testData/diagnostics/tests/evaluate/noOverflowWithZero.kt

@@ -0,0 +1,11 @@
+val zero = 0
+
+fun test() {
+    -0
+    -0L
+    -0.0
+    -(1 - 1)
+    -zero
+
+    +0
+}

compiler/testData/diagnostics/tests/evaluate/noOverflowWithZero.txt

@@ -0,0 +1,4 @@
+package
+
+public val zero: kotlin.Int = 0
+public fun test(): kotlin.Unit