Use explit value for SmallInteger maxVal as suggested per Nicolas Cellier

Author: hernanmd

src/Math-Tests-Numerical/IntegerTest.extension.st

@@ -34,9 +34,9 @@ IntegerTest >> testFirstOver [
 	self assert: (4 firstOver: 4) equals: 2.
 	self assert: (4 firstOver: 5) equals: 2.
 
-	self assert: (4 firstOver: SmallInteger maxVal) equals: 32768.
-	self assert: (3 firstOver: SmallInteger maxVal) equals: 1048576.
-	self assert: (2 firstOver: SmallInteger maxVal) equals: 1073741824.	
-	self assert: (1 firstOver: SmallInteger maxVal) equals: 1152921504606846975.			
+	self assert: (4 firstOver: "SmallInteger maxVal"1152921504606846975) equals: 32768.
+	self assert: (3 firstOver: 1152921504606846975) equals: 1048576.
+	self assert: (2 firstOver: 1152921504606846975) equals: 1073741824.	
+	self assert: (1 firstOver: 1152921504606846975) equals: 1152921504606846975.			
 
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