Warning, version 420 is not yet complete; some version-specific features are present, but many are missing.
WARNING: 0:3: varying deprecated in version 130; may be removed in future release
ERROR: 0:3: 'varying' : no longer supported in core profile; removed in version 420
ERROR: 0:7: '' : vertex input cannot be further qualified 
ERROR: 0:11: '' : can only have one interpolation qualifier (flat, smooth, noperspective) 
ERROR: 0:12: '' : can only have one auxiliary qualifier (centroid, patch, and sample) 
ERROR: 0:13: 'uniform' : too many storage qualifiers 
ERROR: 0:18: '=' : global const initializers must be constant 'const int'
ERROR: 0:20: 'const' : no qualifiers allowed for function return 
ERROR: 0:27: '' : constant expression required 
ERROR: 0:27: '' : array size must be a constant integer expression 
ERROR: 0:38: 'j' : undeclared identifier 
ERROR: 0:38: '=' :  cannot convert from 'float' to 'int'
ERROR: 0:39: 'k' : undeclared identifier 
ERROR: 0:39: '=' :  cannot convert from 'float' to 'int'
ERROR: 0:40: 'j' : undeclared identifier 
ERROR: 0:40: '=' :  cannot convert from 'float' to 'int'
ERROR: 0:44: 'jj' : undeclared identifier 
ERROR: 0:44: '=' :  cannot convert from 'float' to 'int'
ERROR: 17 compilation errors.  No code generated.

ERROR: node is still EOpNull!
0:20  Function Definition: foo( (const int)
0:20    Function Parameters: 
0:?     Sequence
0:23      Sequence
0:23        move second child to first child (int)
0:23          'b' (const (read only) int)
0:23          'anonconst' (int)
0:25      Sequence
0:25        move second child to first child (int)
0:25          'd' (const (read only) int)
0:25          'b' (const (read only) int)
0:29      Branch: Return with expression
0:29        'b' (const (read only) int)
0:32  Function Definition: main( (void)
0:32    Function Parameters: 
0:?     Sequence
0:35      Test condition and select (void)
0:35        Condition
0:35        Compare Equal (bool)
0:35          'i' (int)
0:35          Constant:
0:35            3 (const int)
0:35        true case
0:36        Sequence
0:36          move second child to first child (int)
0:36            'j' (int)
0:36            'i' (int)
0:42      Loop with condition tested first
0:42        Loop Condition
0:42        Constant:
0:42          true (const bool)
0:42        No loop body
0:47  Function Definition: bar(vf4; (void)
0:47    Function Parameters: 
0:47      'v' (in 4-component vector of float)
0:?   Linker Objects
0:?     'v2' (smooth out 2-component vector of float)
0:?     'bad' (in 10-element array of 4-component vector of float)
0:?     'badorder' (in 4-component vector of float)
0:?     'badorder2' (invariant smooth out 4-component vector of float)
0:?     'badorder4' (centroid in 4-component vector of float)
0:?     'badorder3' (flat out 4-component vector of float)
0:?     'rep' (smooth flat out 4-component vector of float)
0:?     'rep2' (centroid smooth sample out 4-component vector of float)
0:?     'rep3' (in 4-component vector of float)
0:?     'anonconst' (int)
0:?     'aconst' (const int)
0:?       5 (const int)
0:?     'a' (const int)
0:?       5 (const int)
0:?     'b' (int)
0:?     'gl_VertexID' (gl_VertexId int)
0:?     'gl_InstanceID' (gl_InstanceId int)