Fixed failing unit tests (issue #203)

st/Kernel-Collections.st

@@ -951,6 +951,10 @@ unescaped
 	<return String(self) === String(aString)>
 !
 
+== aString
+	^self = aString
+!
+
 > aString
 	<return String(self) >> aString._asString()>
 !

st/Kernel-Objects.st

@@ -342,6 +342,10 @@ Boolean instances are weither `true` or `false`.!
 = aBoolean
 	aBoolean class = self class ifFalse: [^false].
 	<return Boolean(self == true) == aBoolean>
+!
+
+== aBoolean
+	^self = aBoolean
 ! !
 
 !Boolean methodsFor: 'controlling'!