Parse longs with 'L' suffix. Report error if 'l' used.

compiler/testData/evaluate/constant/integer.kt

@@ -0,0 +1,31 @@
+package test
+
+// val prop1: 1.toLong()
+val prop1 = 1L
+
+// val prop2: 1.toLong()
+val prop2 = 0x1L
+
+// val prop3: 1.toLong()
+val prop3 = 0X1L
+
+// val prop4: 1.toLong()
+val prop4 = 0b1L
+
+// val prop5: 1.toLong()
+val prop5 = 0B1L
+
+// val prop6: 1.toLong()
+val prop6 = 1l
+
+// val prop7: 1.toLong()
+val prop7 = 0x1l
+
+// val prop8: 1.toLong()
+val prop8 = 0X1l
+
+// val prop9: 1.toLong()
+val prop9 = 0b1l
+
+// val prop10: 1.toLong()
+val prop10 = 0B1l