Do not use emit for declarations.

ir/expression.def

@@ -198,10 +198,10 @@ class Constant : Literal {
         Literal(si, t), value(v), base(base) { CHECK_NULL(t); handleOverflow(noWarning); }
 #emit
     static Constant GetMask(unsigned width);
+#end
 
     /// @return a constant. Any constant returned here is interned. Base is always 10.
     static const Constant *get(const Type *t, big_int v, Util::SourceInfo si = {});
-#end
 
     bool fitsInt() const { return value >= INT_MIN && value <= INT_MAX; }
     bool fitsLong() const { return value >= LONG_MIN && value <= LONG_MAX; }
@@ -262,10 +262,8 @@ class BoolLiteral : Literal {
     bool value;
     toString{ return value ? "true" : "false"; }
 
-#emit
     /// @return a bool literal. Both booleans are interned.
     static const BoolLiteral *get(bool value, const Util::SourceInfo &si = {});
-#end
 }
 
 class StringLiteral : Literal {
@@ -275,10 +273,10 @@ class StringLiteral : Literal {
     StringLiteral(ID v) : Literal(v.srcInfo), value(v.name) {}
 #emit
     operator IR::ID() const { return IR::ID(srcInfo, value); }
+#end
 
     /// @returns a string literal. The value is cached.
     static const StringLiteral *get(cstring value, const Type *t = Type_String::get(), const Util::SourceInfo &si = {});
-#end
 }
 
 class PathExpression : Expression {