Add ESIL <<=[], >>=[] and variants oparators. #9040
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…>>=[2], >>=[4] and >>=[8] operators
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Radare converts the following assembler line :
│ 0x0000067b c165fc03 shll $3, local_4h
to a ESIL expression. The following expression is generated :
│ 0x0000067b c165fc03 3,0x4,rbp,-,<<=[4],$z,zf,=,$p,pf,=,$s,sf,=
Unfortunately the <<=[4] operator (shift left with deferencing) has not been implemented. So iscommand() is not able to find the operator. And the ESIL expression is ignored.
So I add compatibility to <<=[], >>=[] and variants ESIL operators and I fix some typo.